Move instanced index buffer creation to flush time

src/gpu/GrOvalRenderer.h

Index: src/gpu/GrOvalRenderer.h
diff --git a/src/gpu/GrOvalRenderer.h b/src/gpu/GrOvalRenderer.h
index f31aa69bb2d0d34e93064923517503d5469e2a2c..57ce2a5dfe056174d9cc6e0386e09443bc02e313 100644
--- a/src/gpu/GrOvalRenderer.h
+++ b/src/gpu/GrOvalRenderer.h
@@ -24,16 +24,6 @@ class GrOvalRenderer : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(GrOvalRenderer)
 
-    GrOvalRenderer(GrGpu* gpu)
-        : fGpu(gpu)
-        , fRRectIndexBuffer(NULL)
-        , fStrokeRRectIndexBuffer(NULL) {}
-    ~GrOvalRenderer() {
-        this->reset();
-    }
-
-    void reset();
-
     bool drawOval(GrDrawTarget*,
                   GrPipelineBuilder*,
                   GrColor,
@@ -79,10 +69,6 @@ private:
                     const SkRect& circle,
                     const SkStrokeRec& stroke);
 
-    GrGpu*         fGpu;
-    GrIndexBuffer* fRRectIndexBuffer;
-    GrIndexBuffer* fStrokeRRectIndexBuffer;
-
     typedef SkRefCnt INHERITED;
 };